I know this way old but I just got the MP upgrade and holy crap! More air and heft! $850 now but worth it. Do it! I'm now drawn into the music. It takes you into the music!
well a couple of week into it now, all i can say without getting into a boatload of reviewer adjectives, the mp upgrade is well worth it ! more of everything we like. im very happy with the outcome. if you were on the fence get off and do it. best $400. ive spent on my system .
finally got it back from ayre, still to early for a complete review, but more detail,and better soundstage. returned with new badging, a new remote and power cord. honestly i dont remember mine looking this clean. it took awhile but i can already say it was worth the money, ive spent more on tweaks and got less bang for the buck. ill give it a couple of weeks of break in and give an update.
But given that the 1 series has recently been discontinued, it would seem reasonable that there will be a new 1 series at some point, or there will be upgrades that trickle down to the current 5 series
Over at audioasylum, Charles Hansen made it clear that this "MP" upgrade (not to be confused with the filter MP upgrades for the digital players) is *only* for the K-5. To my knowledge, the "e" upgrade is still current production for the AX-7.
I did the upgrade and I recommend. I did it last year so I can't give you a detailed comparison but there was a significant improvement. Wider soundstage and more separation of instruments. It is not an expensive upgrade and it will take your performance up a notch or two.
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